Product details:

1 Piece Din Rail Mount 8 SPDT Power Relay Interface Module. 5V Version, G5LA-14 5V Power Relays. LED indicator for each relay channel. Screw terminal block. Din rail mountable - for width 35 / 32 / 15mm rails. High quality PCB carrier. FR-4 fiber glass PCB. External dimensions: 153 x 87 x 42mm(L x W x H). PCB dimensions: 150 x 72 ( L x W ). 100% new, never used. Operating Voltage/Current(max.): 5Vdc / 720m - A (relay all action). Input control signal voltage: 0V - 0.5Vdc, low level, relay not action. 0.5V - 2.5Vdc, unknown state. 2.5V - 24Vdc, high level, relay action. Input control signal high level current: 2.5V: 0.1m - A. 5V: 0.35m - A. 12V: 1.1m - A. 20V: 1.9m - A. Relay Spec: Type: G5LA-14 5V DC. Contact Rating: 277 VAC / 10 Amp or 30 VDC/10 Amp. This is a very simple module board, no paper specifications, any questions, feel free to tell me. Wire connection and PCB size: VCC: Power supply input, 5V DC. GND: Power supply ground and control signal ground. IN-X: Control signal input, Low: relay not action, High: relay action. COM / NO / NC: Control signal state low, the relay OFF, COM - NO disconnected, COM - NC connected. Control signal stage high, the relay ON, COM - NO connected, COM - NC disconnected.